Rohan is very intelligent in maths. He always try to relate the concept of maths in daily life. One day he is walking away from the base of a lamp post at a speed of 1 m/s. Lamp is 4.5 m above the ground. (i) If after 2 second, length of shadow is 1 meter, what is the height of Rohan ? (a) 145 cm (b) 120 cm (c) 150 cm (d) 175 cm (ii) What is the minimum time after which his shadow will become larger than his original height? (a) 1 sec (b) 2 sec (c) 3 sec (d) 4 sec (iii) What is the distance of Rohan from pole at this point ? (a) 2 m (b) 1 m (c) 3 m (d) 4 m (iv) What will be the length of his shadow after 4 seconds? (a) 2 m (b) 1 m (c) 3 m (d) 4 m (v) Which similarity criterion is used in solving the above problem (a) SAS similarity criterion (b) AA similarity criterion (c) SSS similarity criterion (d) none of these Share with your friends Share 13 Rahul K answered this -2 View Full Answer